（1）
nile 2013-12-10 19:53:01
尼罗河三年前的文章《转基因卫士两大谎言破解》揭露了方市民的谎言“所有的基因，不管是大米原有的，还是人为转入的，化学成分都一样，都是由核酸组成的，在人的消化道中都会被消化掉，而不会被人体细胞直接吸收、利用。”。本博在文章中根据消化生理和相关实验研究结果预言，食物中小分子基因片段可以通过肠道粘膜上皮细胞直接进入人体；转基因食品中的人工基因中的调控元件进入人体有可能影响正常的基因表达调控。这一观点得到最近的研究结果支持。
南京大学张辰宇教授课题组一项非常令人惊奇的发现——植物的微小核糖核酸（microRNA）可以通过日常食物摄取的方式进入人体血液和组织器官。并且，一旦进入体内，它们将通过调控人体内靶基因表达的方式影响人体的生理功能，进而发挥生物学作用。南京大学的miRNA理论发表以后引起世界极大关注，美国老牌权威杂志《大西洋月刊》发表文章《The Very Real Danger of Genetically Modified Foods》转基因食品确实具有非常真实的危险。会给人类的健康带来麻烦！
（9)
ingodwetrustforever 2013-12-11 07:34:46
GM food - transgenic plants and animals - particularly plants harboring genes for stress resistance is the way to go.
Nobody - like it or not - can slow down the progress in this field. That is the only way to solve the food crisis problem.
The harm is far less than the benefits - if you do not believe me, just wait for 20 yrs to see what will happen.
(19)
nile 2013-12-11 13:58:50
回复 'liuwei' 的评论 :
生物在分子水平上有很大的交叉，不能以为一个promoter，一个转录因子。
Concerns About Use of CaMV 35S Promoter in Transgenic Plants
Recently, some concerns have been raised about using the CaMV 35S promoter for expression in transgenic plants because sequence overlap exists between this promoter and the coding sequences of P6. Fifty four transgenic events certified for release in the USA contain up to 528 bp of ORF VI (encoding C-terminal domains of P6) [19] . As P6 is a multifunctional protein whose full range of functions is unknown, there is some concern that expression of one or more of its domains may have unforeseen consequences in the transgenic organisms. Recent studies have attempted to determine what length of CaMV 35S promoter has the least chance of inadvertently producing P6 domains, while still retaining full promoter activity. As one might expect, using shorter promoter lengths decreases the number of P6 domains included and also decreases the likelihood of unwanted effects.[19]
(21)
nile 2013-12-11 14:05:21
回复 'liuwei' 的评论 :
the CaMV 19S promoter的核心是TATA box （tatataa）。
The TATA box (also called Goldberg-Hogness box)[1] is a DNA sequence (cis-regulatory element) found in the promoter region of genes in archaea and eukaryotes;[2] approximately 24% of human genes contain a TATA box within the core promoter.[3]
(22)
nile 2013-12-11 14:07:15
回复 'blush?' 的评论 :
我先报名，不吃GMO。要选举吗？
